Factors include static pressure, velocity, water gauge, and more
Fans and fan systems are significant energy consumers in many commercial applications and can be the greatest consumers in industrial applications. Concerned about being responsible for underperforming systems, designers tend to compensate for uncertainties in the design process by adding capacity to fans. Unfortunately, oversizing fan systems creates problems that increase expenses while potentially decreasing reliability.
When selecting a fan, criteria include airstream characteristics, capacity, pressure, power, and efficiency.